14 lines
1.5 KiB
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14 lines
1.5 KiB
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Hwacha
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The Hwacha project is developing a new vector architecture for future computer systems that are constrained in their power and energy consumption.
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The Hwacha project is inspired by traditional vector machines from the 70s and 80s, and lessons learned from our previous vector-thread architectures such as Scale and Maven
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The Hwacha project includes the Hwacha microarchitecture generator, as well as the Hwacha non-standard RISC-V extension. Hwacha does not implement the RISC-V standard vector extension proposal.
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For more information on the Hwacha project, please visit the `Hwacha website <http://hwacha.org/>`__.
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To add the Hwacha vector unit to an SoC, you should add the ``hwacha.DefaultHwachaConfig`` config mixin to the SoC configurations.
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Since Hwacha implements a non-standard RISC-V extension, it requires a unique software toolchain to be able to compile and asseble its vector instructions.
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To install the Hwacha toolchain, run the ``./scripts/build-toolchains.sh esp-tools`` command within the root Chipyard directory. This may take a while, and it will install the ``esp-tools-install`` directory within your Chipyard root directory. ``esp-tools`` are a fork of ``riscv-tools`` (formelty a collection of relevant software RISC-V tools) that were enhanced with the additional non-standard vector instructions. However, due to the upstreaming of the equivalent RISC-V toolchains, esp-tools may not be up-to-date with the latest mainline version of the tools included in it.
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